Routing machine



May 13, 1 J. A. RICHARDS, JR

ROUTING MACHINE 2 SHEETSSHEET 1 Filed Oct. 28, 1950 LIE-.1.

IN V EN TOR.

4 TTOP/VEV y 13,1952 J. A. RICHARDS, JR 2,596,868

ROUTIQNG MACHINE Filed 001;. 28,. 1950 2 SHEETSSHEET 2 Md 7 mm; .ZNl ENTIUR,

Patented May 13, 1952 BOUEH-NG MACHINE j John AJRihar-dsfiin, Kalamazoo,Mich.,assignor 7 I e to A. iticharils Gompany, Kalamazoo, Mich,

.a' pai tnership f lllpplication October. as,

vide a'new andzimprovedmontrol means-for a 'i'outin'gm'achine.

I A further "object of the invention is to'provide a routing machine "having a control "rod :associatdwtith the motor unit or router "spindle head an'd "which *control "rodnnay be secured in any adjusted radial position relativeto themotor 'unit'or jspindlehead. i V

Otherand further objects of the invention will be apparent from "the following "description and "claims "and may be -uhderstood=by reference to the accompanying drawings,- of which there are two sheets, which by way pf illustration s'how "a preferred embodiment of the "invention and 'wlrat I mow consi'der to' be the *best mode in which Ifhave contemplated applying the pr'inciples -of "scope of the present inventionas set forth in "the-appendedclaims. Y 7

*Inthe-draWin'gs: Fig. '1 is 'afron t elevational =view of a "routing machine enibodyir1g my invention; Fig. 2 a frag-mentary side elevational view of the machine shown Fig. --1, with parts there- -'of'* brokenaway-; o

-Fig;- 3 is-a top plan *v-iew of the machine;

"Fig. 4 is a fragmentary sectional view taken alonglines b-fl ofFig. 3 and Fig.5 a top plan view or the split ring assembly with parts thereof broken away;

The routing *maohine constructed according to the principles of my invention may comprise I a base I havinga table '2' provide'd with a work supporting surface 3., a first warm '4 fpivotally mounted on the table 2, a second :or'outer arm 5 pivoted to the free end of the arm 4, a motor unit or router spindle head '6 carried by the outer end of the arm 5 and having a routing tool 1 dependingtherefrom, "and clamping means on the table 2 comprising a fixed two step toothed clamping jaw 8 and a movable two step toothed jaw 9 for clamping plates of various for purposesof illustration only and form no part of the present invention.

The arm 4 is pivoted to the table 2 about a post .20 my jinven-tion. Ether'embodiments-of the invenf tion m ae; used without departing from the 1-950, Serial No. 192ml I 2 I 13 secured to the table at one corner thereof. ,The arm 4 is provided with vertically spaced ears .l34 having-aligned openings'therein through which the post 13 extends. Roller bearings 'I5 5 are provided between the post l3 and 'eachof the ears H; :A 'Ethrust bearing I6 is arranged betweenthearm4and the tab1e'2. I I The free end of "the arm '4 is ,provided with v fverticallyspaced ears l1 and [8 "having aligned 'openingstherein. Apost ['9 'slidable'through the openings in the ears H "and 18 of "thearm 4.. The arm 5 is provided 'with'rearwardly extending, -vertically "spaced ears 211 and 2-! "having aligned openings each of 'whichis provided with a bearing "2 2 through which the "post 19 extends so that "the arm '5 pivots freely with respect to the arm 4. A collar 23 is secured to the'post ISbyrmeamsof aset screw 24. Athrustbearin 25 rests on "the upper surface "of 'the collar 23 "andi'thefproje'cting'portion 21 of the 'arm 5 rests upon fthethrus't bearing 25.

Theupper'end of thepost *Hlisthreaded and an adjustable hand wheel 26 is threaded thereon. The engagement-of the hand wheel 26 with v25 theuppersurface 2-1 "of the part ll of the arm *4 fixes "the vertical position --of the arm 5. A "bellcran'k lever zapwomam the'arm 4 'byrmeans of "a pin "29 and having-a forked'end 30 engage- "ablewith thennder side o'f'the collar .23 oneither .side of the post I'll is operable for raising the arm '5 rtel'aitive to the "arm 4. The other end of "the *bll crank arm .28 is secured to acabl'e 3| "which extends over a pulley 32 mounted on a "bracket 33 secured to "the upper surface of the farm f4. The cable 3| extends through a central opening 134 in thejpost l3 :and connected at itslower end to affootpedal or treadle35.

In Fig. 1 thearm '5 is shown in'itslowermost position. It will .be seen :that depression of the 0 'pedal35 "will rotate the bell crank'ZB in a counterclockwise direction so that the forked end ."30 o'f'the armflafwill engage the collar23which is fixed 'ito'ftheshaft 1J9, whereby the arm 5 will be raised relative to the arm '4 into the position shown in Fig. 2. With the arm 5 in its upper position as shown in Fig. 2, the wheel 26 may be adjusted by means of its threaded engagement with the shaft l9, and when the desired adjustment is obtained the wheel 26 is locked by means of a thumb screw 38. When the foot pedal 35 is then released, the arm 5 and shaft IE will move downwardly by gravity until the wheel 26 engages the surface 21. Any other suitable means, such as a pair of lock nuts .5 threaded on to the upper end of the" shaft l9,

zontal path, a motor unit carried by said second arm and having a routing tool depending therefrom and driven thereby, and manual control means for controlling pivotal movement of said second arm, said control means comprising a collar fixed to said motor unit, a split ring rotatably journalled on -;said--collar for rotation labouta vertical axis,"'a .control ,rod connected to by a nut 43 threaded on to an extension 44 of the motor unit 6. A control rod 45 is connected'to the split ring 42 for pivotal movement about. a

horizontal axis by means of a pin 46 having an end 41 thereof threadedly secured to the ring 42.

The rod 45 is movable with the ring 42 into any radial position of the rod relative to the the motor unit.

A means is provided for tightening ring 42 against the collar so as to prevent rotation of the ring 42 and the rod relative to the motor unit. As best shown in Fig. 5, the ring 42 is provided with alaterally projecting lug .48 and the ring is split as at 49. A thumb screw 50' is axis of slidable through one part of the split lug 48 and threadedly engages the other part of the lug so that the ring may be tightened into engagement with the collar 40.

the lug 48 so as to bias the ring out of tight engagement with the collar 40. v I

The foregoing arrangement provides for quick I adjustment of the control rod 45 into any desired radial position thereof relative to the motor unit and provides a means for securing the rod in, such adjusted position. v

A rail 53 extends along the front of the table 2 and is secured thereto by means of brackets 54. A guide 55 is slidable along the rail 53 and is provided with an upwardly facing groove 56 adapted to receive the'control rod 45. When the rod 45 is arranged in the guide 55 the machine is adapted for straight line routing in two directions. a When it is desired to move the routing tool freely in any direction over the table, the guide 55 is dispensed with and the rod 45 moved into the desired radial position and locked therein. Both the ,control rod 45 and the control rod 31 extend toward the front of the machine and are adjacentthe rail 53 so as to facilitate control of the routing tool.

While I have illustrated'and described a preferred embodiment of my invention, it is understood that this is capable of modification, and I therefore do not wish .to be limited to the precise details set forth but desire to avail myself of such changes and alterations as fall within the purview of the following claims.

I claim:

1. A router comprising a horizontal table, 'a first arm mounted on said table for pivotal movement in a horizontal path, a second arm pivotally connected to the free end of said first arm 'for pivotal movement ofv said second arm in a horithe split A spring 5| "is provided in. oppositely arranged openings 52 inboth parts of said split ring for pivotal movement relative thereto in a vertical plane and for pivotal movement with said split ring about said collar, re-

leasable means for securing said split ring in tightengagement with said collar for releasably securing said split ring against rotation about said collar whereby said control rod may be secured in any radial position relative to said mo-' tor unit, and spring means biasing said split ring out of said tight engagement with said collar.

2. A router comprising a table, a first arm mounted on said table for pivotal movement in a horizontal path, a second arm pivotally connected to the free end of said first arm for pivotal movement of said second arm in a horizontal path, a housing carried by said second, arm and having a routing tool depending therefrom, and manual control means for controlling pivotal movement of said second arm, said control means 7 any adjusted radial position relative to said comprising a collar fixed to said'housing, a split ring'rotatably journalled on said collar, a control rod connected to said split ring for pivotal movement relative thereto in a vertical plane and for pivotal movement with said split ring about said collar, and means for releasably securingsaid split ring against .rotation about said collar whereby said control rod may be secured in any radial position relative to said housing.

3. A router comprisinga horizontal table, a first arm mounted on said table for pivotal movement in a horizontal path, a second arm pivotally connected to the free end of said first arm for pivotal movement of said second arm in a horizontal path, a motor unit carried by said second arm and having a routing tool depending therefrom and driven thereby, and means for controlling movement of said second arm comprising a collar on said motor unit, a splitring rotatably disposed about said collar for rotation about a vertical axis, a control rod secured to said split ring and movable therewith about said vertical axis, and threaded means for releasably securing said split ring'against rotation relative to said collar whereby said control rod may be secured in JOHN A. RICHARDS. Ja.

tor unit.

' file of this patent? UNITED STATES PATENTS Number Name Date 

